Improvement in governors for steam-heating apparatus



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Governors for Steam Heating Apparatus.

NO 140156 Patentedlune24.l873.

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UNITED STATES PATENT QFFIGE.

SVEN J. OLSSON, OF CHICAGO, ILLINOIS.

IMPROVEMENT lN GOVERNORS FOR STEAM-HEATING APPARATUS.

Specification forming part of Letters Patent No. 140,156, dated J une24, 1873; application filed February 14, 1873.

To all whom it may concern:

Be it known that I, SVEN J .OLssoN, of Chicago, in the county of Cookand State of Illinois, have invented a new, useful, and ImprovedGovernor for Steam-Heating Apparatus, of which invention the followingis a full, clear, and exact description, which will enable othersskilled in the art to which my invention appertains to make and use thesame, reference being had to the accompanying drawing forming a part ofthis specification, and in which v Figure 1 represents a verticalcentral longitudinal section of a governor in which my invention isembodied, and Fig. 2 a like View of the balance-valve.

Like letters of reference indicate like parts.

The object of my invention is to make a governor by means of which thepressure of steam in a steam-heating apparatus may be automaticallyrendered uniform without permitting the escape of steam and regardlessof the degree of pressure in the boiler; and to that end my inventionconsists of a novel balance-valve, and in the means employed for thepurpose of rendering it operative.

In the drawing, A represents the governor. B is a pipe communicatingwith the boiler, and B is a pipe communicating with the heatingapparatus. 0 and O are chambers in the governor. The pipe B communicateswith the chamber or induction 0, and the pipe B with the chamber oreduction O. D is a canopy, which separates the chamber 0 from thechamber C. a a are ports in the canopy D. The chambers G and Ccommunicate with each other through the ports a a. when the latter areopen and at no other time. D is a cap, by means of which the ports a aare opened and closed. 0 is a chamber communicating with the chamber 0.E is a piston arranged in the chamber 0, and E is the piston-rod. F is apost, and G is a lever pivoted thereto.

i His a rod pivoted to the lever G, and attached to the cap D. The rod Eis also pivoted to the lever G. I is a weight arranged on the lever G.The weight I draws passes through the ports a ainto the cham her 0, andfrom thence into the heating apparatus; and as soon as the pressure issufficient the piston E rises, and thus closes, or partly closes, theports a a, which are again opened, or partly opened, as soon as thepressure decreases sufficiently; and the pressure in the heatingapparatus is thus rendered uniform without regard to the pressure in theboiler, and withoutthe escape of steam.

The degree of pressure in the heating apparatus is regulated by theweight I and by its position on the lever G, it being understood thatthe pressure in the boiler is equal to the pressure required in theheating apparatus.

The waste steam from an engine may also be conducted into the chamber 0,and utilized in the heating apparatus; and if the pressure of the wastealone is insufficient the governor will admit steam from the boiler.

It will be observed, from the foregoing description that, when heavinessand position of the weight I is determined, the operation of thegovernor will thereafter be automatic.

The construction and arrangement of the various parts of the governormay be varied in some respects 3 but the construction and arran gementwhich I deem preferable is clearly shown in the drawing, and the partswhich constitute the balance-valve are represented in Fig. 2.

It will be observed from reference to Fig. 2 that the balance-valve isthere. represented as made in four parts, but the number of parts is notessential, provided the cap is capable of a sliding movement, and thatthe part 01 of the canopy is provided with a shoulder to limit theupward movement of the cap, and that the latter is also provided with ashoulder, which rests on the shoulder of the canopy when the cap isresting on its seat. These two shoulders should be ground so that atight joint will be formed by their contact. The lower edge of the cap,and the seat on which it rests, should also be ground, and the top ofthe cap should be either wholly or partly open. The point or verticalline a should also be in the same vertical plane with that part of theouter face of the canopy-wall which extends above the shoulderprojecting from the said wall. My improved governor may also be employedfor other similar purposes.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

A steam-governor, consisting of the combination and arrangement of thechambers (J, C,

and G, canopy D provided with ports a a, cap D, piston E, and pivotedlever G attached to the cap and piston, all substantially as and for thepurposes specified.

SVEN J. OLSSON. Witnesses:

N. O. GRIDLEY, F. F. WARNER,

